It seems you are taking a test on radical functions. While I cannot directly answer the test questions for you, I can certainly help you understand how to approach radical functions and provide you with some general information that may be relevant to your test. Please let me know how I can assist you further.
To help you with your test, I need more information. Are you looking for specific step-by-step solutions or explanations to questions on Lesson 20: Radical Functions Unit Test? If you provide me with the questions, I will be happy to assist you step-by-step.
